The Test Exploration to Comet Halley by Yunnan Observatory
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Abstract
Comet Halley was observed with the CCD camera system attached to the 1-m telescope of Yunnan Observatory on 1984 November 5.The central time for exposure was J.D.2446009.40269,the apparent position of the comet is.a=6h39m078.009,δ=+12°10'10."63.The visual magnitude of the comet is estimated to be 21.m3.
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